Compressors

The SMC Hilomast compressors are renowned for their high quality and reliability. They are air cooled, oil-less and of the diaphragm type. They have steel cases and are powered by electric motors. All models incorporate a pressure controlled switch to maintain the correct mast working pressure. The compressors are quiet, maintenance free and assembled from components that have a proven reliability over many years.

Below is our standard range of compressors. We are also able to design and manufacture bespoke compressors if required.

Please contact us for a quote or for more information on what we can offer.

To calculate the time to fully extend the mast, the height of mast is divided by rate: e.g. For NL/12 mast with NC/2 Compressor – Extension Time = 12 ÷ 4.8 = 2.5 minutes. The time to reach max. pressure is approx. 2 x Extension Time e.g. 5 minutes.

All dimensions are approximate.

Compressor Type

Approx. rate of mast extension Metres per minute

NH Series

NK Series

NL Series

NX Series

NY Series

NC1

7.2

4.2

2.6

1.7

-

NC2

13.5

8.1

4.8

3.2

1.7

NC3

-

18.1

10.8

7.5

3.9

Note: Figures should be used as a guide only, head load and environmental conditions will affect the extension time.

NC1 Compressor

The NC1 compressor is the smallest and simplest in the Hilomast range. They are portable and thus suitable for field applications. The units are supplied complete with a single hose and mast connector. The mast is retracted by a manual exhaust valve on the front of the unit, enabling full control from inside a vehicle or building. Although designed primarily for the NH and NK Seriesmasts, they will perform satisfactorily with the NL Series, when the speed of extension is not important.

NC2 Compressor

The NC2 compressor has all the features of the NC1 compressor and gives approximately twice the output. An additional feature is a single switch that controls both the power supply and an electrically operated exhaust valve.

The units are supplied with two hoses, one for connection to mast and one for exhaust air and drainage. This feature is very useful for vehicle installation, as it drains the moisture collected in the mast from the compressor. The NC2 compressors are ideally suited for the NL Series masts but will work equally well with the NK and NX Series.

Specification

Max. Pressure: 1.8 Kg/cm2 Weight: 15 Kgs. NC2/230 for 220/240v AC

Output: 34 litres/minute at 0.7Kg/cm2 Size: 330 x 320 x 220mm high

Single phase supply

Current: 1 amp

NC2/12 For 12v DC supply

Current: 14 amps

NC2/24 For 24v DC supply

Current: 8 amps

NC3 Compressor

The NC3 compressor is the largest in the SMC Hilomast range. Although designed for NX and NY Series masts, they can be used to operate smaller masts where a faster rate of extension is required (see table). They have the same type of switch and hose arrangement as the NC2 compressor.

The units are supplied to meet standard conditions but there is capacity within the system to accommodate customers’ specialised electrical or pneumatic control requirements.